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Raid 0: striping Raid 1: mirroring Raid 2: Error-correcting storage. Raid 3: bit-interleaved parity. Raid 4: block-interleaved parity. Raid 5: block-interleaved distributed parity. Raid 6: P+Q redundancy. Raid 0+1: striping and mirroring. 

An even number of 1s: even (0) parity.
An odd number of 1s: odd (1) parity.
01010101+0 01010101+0 \(\downarrow\) \(\downarrow\) 01011101+0 01001101+0 
00+000 01+011 10+101 11+110 

010?0101+0 → 01010101+0
| This page last modified on 2011 October 9. |